There are 2 matches
| Collection | Authorizer | Collection name | Reference |
|---|---|---|---|
| 23690 | S. Holland | Glenwood Formation Cephalopods, Minnesota Blackriveran - Ordovician 4-5 - Minnesota | Catalani (1987) |
| 23691 | S. Holland | Platteville Formation Cephalopods, Minnesota Blackriveran/Rocklandian - Ordovician 4-5 - Minnesota | Catalani (1987) |